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Altera_Forum's avatar
Altera_Forum
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11 years ago

DDR PHY Problem

Hi : I got a project have to create a environment (PHY & Memory controller) for using LPDDR3 on Cyclone V. But Cyclone V don't support PHY for LPDDR3. So I think to try using PHY of LPDDR2 and a...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
10 years ago

Hi,

well regarding comparing LPDDR2 and LPDDR3 you find on wikipedia (https://en.wikipedia.org/wiki/mobile_ddr#cite_note-lpddr3-5): "The command encoding is identical to LPDDR2, using a 10-bit double data rate CA bus.[SUP][5] (https://en.wikipedia.org/wiki/mobile_ddr#cite_note-lpddr3-5)[/SUP] However, the standard only specifies 8n-prefetch DRAM, and does not include the flash memory commands." The page also links to the documents of the both standards. These should clarify your questions.

I think the main issue will be writing a controller for the Cyclone V device. However, I hope this was of any help.

Cheers,

Fade